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DLPLIGHTCRAFTER: Problem uploading series on version 1

Steffen Nothelfer
Prodigy 65 points

Part Number: DLPLIGHTCRAFTER

Hello TI,

I have an old verison v1 of the DLP Lightcrafter 3000 EVM, unvortunatelly it is not working completely correct. I can connect the GUI test software and upload static images, it is possible to change the test patterns and I can also read the pattern sequence settings but I can not upload other settings nor can I upload image sequences. When clicking upload, the software gives an error "command FAILED". I already tried to update to firmware version 5.0 but then the board does even not boot, this is why recently version 3.31 is used.

Do I need to add a 0Ohm resitor at position R205 in order to get the full device capabilities? Or did I miss something esle?

Thank you in advance...

  • 0
    Prodigy 65 points
    I fixed the Problem, by changing the mini USB cabel! The first cable I used was probably too long and therefore shielding did't not work properly. With the other cable I can upload image sequences using the GUI version 1.1. But I only managed to upload single color images.
    But I need to project some patterns with all LEDs runing at a certain fixed power, the color nor the intensity has to change within the pattern sequence. Is this realy only possible using the MBMC model, or is there some easier way?
  • 0 in reply to Steffen Nothelfer
    TI__Mastermind 28005 points
    Thanks for your update, Steffen.

    I'm not aware of any distinct performance differences between different USB cables. Why are you trying to run all the LEDs simultaneously?

    Best Regards,
    Philippe Dollo
  • 0 in reply to Philippe Dollo
    Prodigy 65 points

    Hello Philippe,

    thank you for the answer. We need all LEDs switched on at the same time, because we want to capture images with a rgb camera of all three channels at exactly the same time. I know as workearound I could use the MBMC mode, displaying the three colors after each other, but as the images have to be 8 bit we would be very limited in both frame rate (120Hz/3 = 40Hz) which is to slow and number of rgb images (94/8/3=4). I read in the forum that the power of the LED driver is not caipable of driving all three LEDs at the same time, is this correct? My idea was now to unplug the LED cable and connect it to a self made driver board and then use the output of one LED to controle all three LEDs at the same time. If there is a simpler solution please let me know.

    Regards,

    Steffen Nothelfer

  • 0 in reply to Steffen Nothelfer
    TI__Mastermind 28005 points
    Steffen,

    It is not possible to drive all three LEDs in the manner you suggest with this EVM. In addition, I do not believe it is possible to use a custom driver board in tandem with the standard system to drive all three LEDs together, although we have not tested this approach. Have you considered using a white LED substituted in to drive the system? This may present a more elegant solution rather than driving the three LEDs separately.

    I hope this helps.

    Best Regards,
    Philippe Dollo